Global Patent Index - EP 3771833 A1

EP 3771833 A1 20210203 - MOTOR AND BEARING COOLING PATHS

Title (en)

MOTOR AND BEARING COOLING PATHS

Title (de)

MOTOR UND LAGERKÜHLWEGE

Title (fr)

TRAJETS DE REFROIDISSEMENT DE MOTEUR ET DE PALIER

Publication

EP 3771833 A1 20210203 (EN)

Application

EP 19216333 A 20191213

Priority

US 201916530497 A 20190802

Abstract (en)

A compressor according to an exemplary embodiment of this disclosure, among other possible things includes, a rotor (22) driven by a shaft (30) and configured to compress air. A motor (28) drives the shaft. First and second journal bearings (34a, 34b) facilitate rotation of the shaft. The first journal bearing is located upstream from the motor, and the second journal bearing is located downstream from the motor. A thrust bearing (33) also facilitates rotation of the shaft. The thrust bearing is downstream from the second journal bearing. A tie rod (70) connects the shaft to a motor rotor shaft adjacent the first journal bearing. The tie rod includes an opening (68) which is configured to communicate cooling air from the motor to the rotor. A method for cooling a compressor is also disclosed.

IPC 8 full level

F04D 29/054 (2006.01); F04D 17/10 (2006.01); F04D 25/06 (2006.01); F04D 25/08 (2006.01); F04D 29/051 (2006.01); F04D 29/056 (2006.01); F04D 29/58 (2006.01); F04D 29/057 (2006.01)

CPC (source: EP US)

F04D 17/10 (2013.01 - EP); F04D 25/0606 (2013.01 - EP); F04D 29/051 (2013.01 - EP); F04D 29/054 (2013.01 - EP); F04D 29/056 (2013.01 - EP); F04D 29/5806 (2013.01 - EP US); F04D 29/584 (2013.01 - EP US); F04D 29/057 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3771833 A1 20210203; US 11225978 B2 20220118; US 2021033112 A1 20210204

DOCDB simple family (application)

EP 19216333 A 20191213; US 201916530497 A 20190802